Compatibility levels¶

Configs are versioned via the conveyor.compatibility-level key. When missing it's set to the current major version of Conveyor. The idea is that you keep this setting along with the rest of your config in version control, and that allows defaults to change over time. You can opt-in to new behaviour that might not be fully backwards compatible at your leisure.

Additionally, using new config keys requires increasing your compatibility level. This is to catch the case where the Conveyor being used is older than the one expected by the author of the config.

Here is how behaviour changes at each level.

Level 12¶

The default value for app.windows.manifests.msix.background-color is now transparent. Previously, the default was #ffffff.

From level 12 onwards, the Temp directory is no longer devirtualized on Windows. This avoids problems with Microsoft Store permission reviews. Instead, for JVM apps the temp directory is pointed into the user's home directory, to work around bugs in the Windows kernel that would otherwise break TCP connections.

These new keys were added:

app.electron.asar
app.electron.prune
app.windows.installer.theme
app.site.theme
app.theme

Level 11¶

These new keys were added:

app.mac.deltas
app.site.move-from.base-url
app.site.move-from.copy-to
app.site.move-from.github.oauth-token
app.site.move-from.github.pages-branch
app.site.move-from.s3.region
app.site.move-from.s3.access-key-id
app.site.move-from.s3.secret-access-key
app.windows.exe-installer-basename

Sparkle deltas are generated for up to 5 previous versions by default.

Level 10¶

These new keys were added:

app.linux.debian.distribution.mirrors
app.linux.debian.distribution.name
app.site.ignore-connection-issues-for-hosts
app.site.show-conveyor-badge
app.windows.manifests.msix.append-publisher-id-to-appinstaller
app.windows.manifests.msix.reinstall-if-required
app.windows.manifests.msix.update-escape-hatch.exe
app.windows.manifests.msix.update-escape-hatch.run-if
app.windows.manifests.msix.use-update-escape-hatch

The escape hatch mechanism is enabled by default starting from compatibility level 10. It may be enabled for all compatibility levels in a later release.

The distribution package index used for computing dependencies for Linux DEB packages changes from Ubuntu Focal to Ubuntu Jammy.

Level 9¶

These new keys were added:

app.compression-level
app.mac.check-binary-versions
app.windows.manifests.msix.application-id
app.windows.store.publisher
app.windows.store.publisher-display-name
app.windows.store.identity-name

Optional inputs are now supported.

Level 8¶

These new keys were added:

app.site.github.oauth-token
app.site.github.pages-branch
app.site.s3.bucket
app.site.s3.access-key-id
app.site.s3.secret-access-key
app.windows.manifests.msix.additional-properties-xml
app.jvm.windows.override-appdata-env
app.windows.manifests.msix.virtualization.excluded-directories

At level 8 or higher the LocalAppData\Temp directory is de-virtualized automatically for JVM apps. This is to work around a Windows bug.

Some defaults change at this level. When the compatibility level is 7 or lower:

The app icons are assumed to match icon-*.png and be next to the conveyor.conf file.
On Linux, some symlinks are added to your app directory which point into /var
For JVM apps:
- library extraction is on by default
- Some extra system properties are added

At level 8 or higher these defaults were changed:

Icons are now generated automatically.
The default symlinks were removed.
Native library extraction from JARs is turned off and the extra system properties were moved to an include file.

To re-activate library extraction add this to your config:

include required("https://raw.githubusercontent.com/hydraulic-software/conveyor/master/configs/jvm/extract-native-libraries.conf")

The old default config added before level 8 looked like this:

app {
    icons = [ "icon-*.png" ]

    linux.symlinks = [
        ${"$"}{app.linux.prefix}/bin/${"$"}{app.fsname} -> ${"$"}{app.linux.install-path}/bin/${"$"}{app.fsname}
        logs -> /var/log/${"$"}{app.long-fsname-dir}
        data -> /var/lib/${"$"}{app.linux.var-lib-dir}
        cache -> /var/cache/${"$"}{app.long-fsname-dir}
    ]

    jvm {
        extract-native-libraries = true

        system-properties {
            // Java Native Access: https://github.com/java-native-access/jna/issues/384
            jna.nosys = false

            // FlatLAF: a modern Swing theme.
            flatlaf.nativeLibraryPath = system
        }
    }
}